D
Digigenic
Guest
:arrow: THIS IS FROM AN ARTICLE IN THE APRIL 04 ISSUE OF VIDEOGRAPHY MAGAZINE.
:arrow: THE ARTICLE IS ON PAGE 28, ENTITLED "THE ONLY DIGITAL CAMCORDERS"
"A cinematographer is shooting film at 24 frames per second. A videographer is shooting 24p electronically. Which is shooting digitally?
In digital video, a frame is divided into a grid of scanning lines and picture elements (pixels). So is an imaging chip. Film, on the other hand, has a random pattern of photosensitive grain.
Digital, however, means numerical, reduced in its most basic form to just two digits: one and zero, on or off. The sensor sites on an imaging chip are analog. Increase the light by any amount (below the limit of the chip), and the analog signal leaving will increase appropriately. There is not yet such a thing as an all-digital video camera.
Film grains, on the other hand, are purely digital. They are either exposed or not. Shades of gray are achieved by using differing sizes of grain, requiring differing amounts of light to achieve the exposure threshold.
'Film or digital?' That makes no sense. Film is digital."
:arrow: THE ARTICLE IS ON PAGE 28, ENTITLED "THE ONLY DIGITAL CAMCORDERS"
"A cinematographer is shooting film at 24 frames per second. A videographer is shooting 24p electronically. Which is shooting digitally?
In digital video, a frame is divided into a grid of scanning lines and picture elements (pixels). So is an imaging chip. Film, on the other hand, has a random pattern of photosensitive grain.
Digital, however, means numerical, reduced in its most basic form to just two digits: one and zero, on or off. The sensor sites on an imaging chip are analog. Increase the light by any amount (below the limit of the chip), and the analog signal leaving will increase appropriately. There is not yet such a thing as an all-digital video camera.
Film grains, on the other hand, are purely digital. They are either exposed or not. Shades of gray are achieved by using differing sizes of grain, requiring differing amounts of light to achieve the exposure threshold.
'Film or digital?' That makes no sense. Film is digital."